EP2277320A1 - Procédé de transmission sans fil de données entre un module de mesure et une unité de transmission - Google Patents

Procédé de transmission sans fil de données entre un module de mesure et une unité de transmission

Info

Publication number
EP2277320A1
EP2277320A1 EP09745280A EP09745280A EP2277320A1 EP 2277320 A1 EP2277320 A1 EP 2277320A1 EP 09745280 A EP09745280 A EP 09745280A EP 09745280 A EP09745280 A EP 09745280A EP 2277320 A1 EP2277320 A1 EP 2277320A1
Authority
EP
European Patent Office
Prior art keywords
antenna
transmission unit
measuring module
sensors
measurement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09745280A
Other languages
German (de)
English (en)
Other versions
EP2277320B1 (fr
Inventor
Rudolf Heer
Hubert BRÜCKL
Hans Kroath
Jürgen WISSENWASSER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AIT Austrian Institute of Technology GmbH
Original Assignee
AIT Austrian Institute of Technology GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AIT Austrian Institute of Technology GmbH filed Critical AIT Austrian Institute of Technology GmbH
Publication of EP2277320A1 publication Critical patent/EP2277320A1/fr
Application granted granted Critical
Publication of EP2277320B1 publication Critical patent/EP2277320B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
    • G01R21/1331—Measuring real or reactive component, measuring apparent energy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2209/00—Arrangements in telecontrol or telemetry systems
    • H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture
    • H04Q2209/47—Arrangements in telecontrol or telemetry systems using a wireless architecture using RFID associated with sensors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2209/00—Arrangements in telecontrol or telemetry systems
    • H04Q2209/80—Arrangements in the sub-station, i.e. sensing device
    • H04Q2209/84—Measuring functions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2209/00—Arrangements in telecontrol or telemetry systems
    • H04Q2209/80—Arrangements in the sub-station, i.e. sensing device
    • H04Q2209/88—Providing power supply at the sub-station
    • H04Q2209/883—Providing power supply at the sub-station where the sensing device enters an active or inactive mode

Definitions

  • the invention relates to a method according to the preamble of claim 1 and to an arrangement according to the preamble of claim 4.
  • Inventive methods and arrangements are used in particular for online monitoring and determination of measured variables or biological reactions, in particular the electrical properties of cell cultures.
  • the impedance of that sample is determined at one or more predetermined frequencies. By means of this multiplicity of impedances measured at different frequencies, it is possible to draw conclusions about biological properties of the sample.
  • the measurement components in which the biological samples are located and the transmission units which forward the measurement data to a central data processing unit are designed as separate units.
  • wireless data transmission methods in particular RFID transmission methods, can be used.
  • the measurement components are implemented as passive RFI D components, that is to say that the energy supply of the measurement components takes place via an electromagnetic signal emanating from the transmission unit, energy buffering occurring in the measurement component.
  • An essential problem of the prior art is that the measurement of the impedance of the biological samples and the transmission of the measured data by means of rapidly varying electromagnetic fields is realized. For this reason, interferences may occur during the recording of the measurement data, which is caused by the transmission of previously measured measurement data or by the simultaneous transmission of energy.
  • the invention has the object to solve the problems mentioned and to provide a method or a measuring arrangement, which overcomes the problems mentioned.
  • the invention solves this problem in a method with the features of the characterizing part of claim 1 and in an arrangement with the features of the characterizing part of claim 4.
  • a significant advantage of the method and the arrangement according to the invention is that during the detection of the measured quantities by the Measurement module no interference between the for the Measurement required electromagnetic signal and the signal for the data or energy transfer occur.
  • the accuracy or signal-to-noise ratio (SNR) of the measurement is thus greatly improved, and in particular the quality of the impedance measurement in those frequency bands or their harmonics or subharmonic waves is greatly improved, which coincide with the frequency band used for data transmission ,
  • the invention thus prevents interferences between in the near field between the antennas used for the data and energy transmission and the components provided for determining the measured variables on the measuring module. With the features of claim 2 particularly accurate statements about the nature of biological samples can be made.
  • FIG. 1 shows a measurement setup according to the invention comprising a transmission unit and two measurement modules.
  • Fig. 2 shows schematically the structure of a measuring module.
  • FIG. 3 shows a timing diagram which represents the temporarily stored supply voltage in the measurement module as well as the signals transmitted by the respective transmission antennas of the transmission unit or the measurement modules over time.
  • Fig. 4 shows schematically the transmission of energy and information in the form of electromagnetic waves
  • This transmission unit 1 shows a transmission unit 1 and two measurement components 2 in radio communication with this transmission unit 1.
  • This transmission unit 1 comprises a multiplicity of first antennas 8, each measurement component 2 being assigned a first antenna 8, this first antenna 8 being in the vicinity of the measuring module 2 is located.
  • Each first antenna 8 is associated with an antenna driver 9, which allows bidirectional communication with the antenna 8.
  • a further output for a supply line 10 or a common data line 10 for a plurality of first antennas 8 located in the transmission unit 1 or the respective associated antenna drivers 9 is provided on the antenna driver 9.
  • measuring modules 2 are shown, which comprise a second antenna 5, which is in electromagnetic operative connection with the respective associated first antenna 8.
  • Each of the first antennas 8 is disposed immediately below the associated second antenna 5, wherein between the two mutually associated antennas 5, 8 may be a distance of a few millimeters.
  • Each measuring module 2 comprises a sample container, in which the biological test material can be filled.
  • the sensors 3 are typically arranged at the inner edge of the respective sample container.
  • Each of the measuring components comprises one or more sensors for receiving a plurality of physical measured variables and their conversion into electrical signals.
  • Each of these sensors is followed by one or more measuring amplifiers 4 for amplification and, if appropriate, for analog-to-digital conversion of the signal amplitude or of the signal profile.
  • a central data processing unit 7 is provided within the measuring module 2, which is connected both to a sensor 3, optionally to the measuring amplifier 4, and to the respective second antenna 5.
  • this central data processing unit 7, in particular a microcontroller the determined and optionally digitized measurement data are processed, stored and possibly preparatory analyzes performed.
  • the central data processing unit 7 is connected to the second antenna 5, wherein between the central data processing unit 7 and the second antenna 5, a communication control unit is interposed, which enables communication between the central data processing unit 7 and a computer node connected to the transmission unit 1.
  • a communication control unit can also be present as an integrated component of the central data processing unit 7.
  • a receiving unit 6 is connected to the second antenna 5, which transforms the electromagnetic energy of the signal applied to the second antenna 5, caches and provides in the form of a voltage applied to its output voltage level.
  • This receiving unit 6 is connected to a buffer memory for electrical energy, which allows the operation of the central data processing unit 7, the sensors 3 and the measuring amplifier 4 continue even if at any given time no energy from the transmission unit 1 to the respective measuring module. 2 is transmitted. Thus, there is the possibility that a measurement can be continued even if there is no direct energy transfer from the first antenna 8 to the second antenna 5.
  • the stored energy is provided at the output of the receiving unit 6 in the form of a voltage level, wherein the stored energy for Power supply to the sensors, the measuring amplifier and the central data processing unit 7 is delivered.
  • the lines for the power supply of the central data processing unit, the measuring amplifier and the sensors are not shown in Fig. 1. In Fig. 4, the power and data transmission between the
  • the transmission unit 1 transmits electromagnetic energy P1 to the measuring module 2. Apart from scattering losses, the electromagnetic energy P1 transmitted by the transmission unit 1 is divided in the measuring module by the second antenna 5 and the absorbed energy is divided between the receiving unit 6 and the data processing unit 7. A storage of the transmitted energy takes place in the storage unit 11 connected to the receiving unit 6.
  • This memory unit 11 includes a voltage regulator, which allows a supply of the measuring module 2 with a constant voltage.
  • the data processing unit 7 or the data processing unit 7 upstream communication controller determined from the electromagnetic data signals control information, which are provided for the control of the measuring module 2. By means of this signal, the measuring module 2 or the central data processing unit 7 can be controlled by the transmission unit 1.
  • the excess of energy P1 is passed to the receiving unit 6, which also converts the energy stored in the signal into electrical energy and provides it in the form of a voltage level applied to its output.
  • the receiving unit 6 For the measurement by means of the sensors 3 as well as the transmission of data from the second antenna 5 to the first antenna 8 is thus that energy available, which is stored in the receiving unit 6.
  • Such a configuration of the measuring module 2, which does not require a constant source of energy, is referred to below as passive. Only one of the two communication participants requires an external energy source to maintain the communication, while the other communication participant, namely the measurement module 2, determines its energy from the data signal of its communication partner.
  • the transmission unit 1 is actively set and transmits an electromagnetic signal to its associated measuring module 2.
  • the first antenna 8 of the transmission unit 1 is made inactive and the measurement of the impedance of the sample by means of the two sensors 3 is started. It is noteworthy here that the measurement can not be disturbed by the electromagnetic signal emitted by the first antenna 8.
  • a particular embodiment of the method according to the invention relates to
  • the upper graph of Fig. 3 illustrates the timing of the data signal transmitted between the first antenna 8 and the second antenna 5.
  • the lower graph of Fig. 3 illustrates the electrical energy stored in the receiving unit 6.
  • Receiving unit 6 still no energy stored.
  • the signal transmitted by the transmission unit 1 to the measurement component 2 via the first antenna 8 and the second antenna 5 is used to charge the energy storage unit of the reception unit 6.
  • the energy stored in the measuring module 2 tends towards a predetermined value.
  • data can be exchanged between the measurement module 2 and the transmission unit 1.
  • the measuring module 2 sends a stop signal S via its second antenna 5, which causes the first antenna 8 of the transmission unit 1 to be made inactive.
  • This inactivation takes place at the instigation of the measurement module 2, which signals to the transmission unit 1 that the memory unit 11 connected to the reception unit 6 is fully charged and that further signals from the transmission unit 1 have to be avoided in the sense of a trouble-free measurement.
  • the first antenna 8 of the transmission unit 1 is made inactive for a predetermined period of about 100 ms, during which time the measurement process takes place in the measurement module 2. As shown in the lower graph, the stored energy in the receiving unit 6 during a subsequent data acquisition phase C decreases.
  • the first antenna 8 of the transmission unit 1 is again set active, whereby the receiving unit 6 during a subsequent charging phase D is recharged again.
  • data can be transmitted from the measuring module 2 to the transmission unit 1.
  • the energy stored in the measuring module 2 in this case remains approximately constant, since, in spite of electrical activity in the measuring module 2, energy is continuously supplied via the first antenna 8 to the measuring module 2.
  • the measuring module 2 again gives a stop pulse S and the measuring process can be carried out again. Typically, such a procedure is repeated ten to twenty times until all the data to be detected has been recorded by means of the sensors 3 and transmitted to the transmission unit 1.
  • each measuring module 2 is assigned a first antenna 8 and each antenna 8 is assigned its own antenna driver.
  • a data line 10 with a low data volume is available.
  • These data lines 10 may optionally be interconnected to form a bus and routed to a common computer node.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

Procédé d'enregistrement et de transmission de données entre une unité de transmission (1) présentant une première antenne (8) et un module de mesure (2) comprenant un détecteur (3) servant à enregistrer des variables mesurées et à transformer celles-ci en signaux électriques, des données étant transmises de façon bidirectionnelle entre le module de mesure (2) et l'unité de transmission (1) située à proximité du module de mesure (2) au moyen d'une deuxième antenne (5) placée sur le module de mesure (2). L'énergie électromagnétique du signal appliqué à la deuxième antenne (5) est transformée et accumulée temporairement par une unité de réception (6) située en aval de la deuxième antenne (5) et la première antenne (8) de l'unité de transmission (1) est rendue inactive au moins pendant la durée de la détection des variables mesurées par le module de mesure (2) ou par les détecteurs (3).
EP09745280.9A 2008-05-14 2009-05-14 Procédé de transmission sans fil de données entre un module de mesure et une unité de transmission Not-in-force EP2277320B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0077008A AT505632B1 (de) 2008-05-14 2008-05-14 Verfahren zur datenübertragung
PCT/AT2009/000198 WO2009137858A1 (fr) 2008-05-14 2009-05-14 Procédé de transmission sans fil de données entre un module de mesure et une unité de transmission

Publications (2)

Publication Number Publication Date
EP2277320A1 true EP2277320A1 (fr) 2011-01-26
EP2277320B1 EP2277320B1 (fr) 2018-10-17

Family

ID=40427619

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09745280.9A Not-in-force EP2277320B1 (fr) 2008-05-14 2009-05-14 Procédé de transmission sans fil de données entre un module de mesure et une unité de transmission

Country Status (5)

Country Link
US (1) US8793084B2 (fr)
EP (1) EP2277320B1 (fr)
CN (1) CN102027755B (fr)
AT (1) AT505632B1 (fr)
WO (1) WO2009137858A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8588687B2 (en) 2010-10-15 2013-11-19 Roche Diagnostics Operations, Inc. Coexistence of multiple radios in a medical device
CN102507047A (zh) * 2011-09-30 2012-06-20 中北大学 一种非接触无源传感器信号测试系统
CN105232041A (zh) * 2014-07-07 2016-01-13 北京大学深圳研究生院 人体体表电特性分布的测量装置、数据终端及方法
US10070286B2 (en) 2016-05-27 2018-09-04 Analog Devices, Inc. Single-wire sensor bus
JP7353927B2 (ja) * 2019-11-12 2023-10-02 京セラ株式会社 無線センサ装置および無線センサシステム

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60171475A (ja) * 1984-02-15 1985-09-04 アイデンティフィケ−ション・デバイセス・インコ−ポレ−テッド 識別システム
DE301127T1 (de) 1987-07-31 1989-08-24 Texas Instruments Deutschland Gmbh, 8050 Freising Transponder-anordnung.
EP0537378B1 (fr) * 1991-10-17 1997-09-17 Texas Instruments Deutschland Gmbh Méthode de lecture de données enregistrées dans un répondeur passif au moyen d'un dispositif d'interrogation comprenant une partie de réception
US5597534A (en) * 1994-07-05 1997-01-28 Texas Instruments Deutschland Gmbh Apparatus for wireless chemical sensing
DE19832628C2 (de) * 1998-07-21 2000-10-12 Daimler Chrysler Ag Transponderanordnung
US20030114769A1 (en) * 1999-08-20 2003-06-19 Capital Tool Company Limited Microminiature radiotelemetrically operated sensors for small animal research
US6969994B2 (en) * 2001-09-26 2005-11-29 Schlumberger Technology Corporation Directional electromagnetic measurements insensitive to dip and anisotropy
US7125382B2 (en) * 2004-05-20 2006-10-24 Digital Angel Corporation Embedded bio-sensor system
US7928850B2 (en) * 2007-05-08 2011-04-19 Abbott Diabetes Care Inc. Analyte monitoring system and methods
WO2010069391A1 (fr) * 2008-12-19 2010-06-24 Telefonaktiebolaget L M Ericsson (Publ) Sélection d'émission adaptative

Also Published As

Publication number Publication date
AT505632A4 (de) 2009-03-15
CN102027755B (zh) 2014-06-11
CN102027755A (zh) 2011-04-20
US8793084B2 (en) 2014-07-29
AT505632B1 (de) 2009-03-15
WO2009137858A1 (fr) 2009-11-19
US20110125428A1 (en) 2011-05-26
EP2277320B1 (fr) 2018-10-17

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